Foreign Affairs Minister Julie Bishop has condemned the WikiLeaks party for sending a delegation to meet with Syrian president Bashar al-Assad.

The Syrian president released a Twitter photo on December 23 appearing to show the meeting.

The WikiLeaks delegation reportedly included John Shipton, the father of founder Julian Assange, who is currently the chairman of the WikiLeaks party.

Ms Bishop said WikiLeaks' actions were "excessively reckless" and risked involving Australia in the conflict.

"It's an extraordinarily reckless thing for an organisation registered as a political party in Australia to try and insert itself in the appalling conflict in Syria for their own political ends," he said.

"It's certainly counter-productive. It is not in support of the sanctions regime that Australia has in place, in fact it risks undermining the sanctions regime we have in place, and it risks aligning Australia with one side of the conflict in Syria, which is something we would not do."

"While the WikiLeaks Party recognises the needs for political reforms in Syria and to fight against corruption and abuses of human rights, it does not support achieving this by violence, Western military intervention and destruction of the country," the statement said.

"Due to security concerns and because of the high levels of violence in Syria, we cannot give detailed information about the delegation."

The Federal Opposition has also voiced its concerns over the delegation, saying it was "irresponsible".

"That is an extraordinary thing for them to do," Labor frontbencher Chris Bowen said yesterday.

"The Assad regime has been widely criticised and correctly criticised around the world.

"And for an Australian political party to think it's sensible to go and have discussions and try and provide some legitimacy, is something I think which they have to explain."

WikiLeaks has distanced itself from the delegation's visit, saying it had no knowledge of it and did not approve it.